Safety protection device for bridge engineering construction

CN224605410UActive Publication Date: 2026-08-07SICHUAN ROAD & BRIDGE CONSTRUCTION GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN ROAD & BRIDGE CONSTRUCTION GROUP CO LTD
Filing Date
2025-07-21
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0005]本实用新型的目的在于:针对现有的防护装置,仅通过电机驱动吊索以带动吊篮升降,施工灵活性较差,且难以阻碍吊篮意外下坠,存在安全隐患,解决了施工灵活性较差且难以阻碍吊篮意外下坠的问题

Benefits of technology

一、通过所述水平牵引机构带动竖直牵引机构和防护篮沿水平方向移动,通过所述竖直牵引机构带动防护篮升降,提高了施工灵活性,当所述防护篮意外下坠时,通过所述锁紧件将防护篮与牵引绳锁紧,进而阻碍所述防护篮下坠,解决了施工灵活性较差且难以阻碍吊篮意外下坠的问题;

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Abstract

The utility model relates to bridge construction technical field discloses safety device for bridge engineering construction, including horizontal traction mechanism, installs on construction platform, vertical traction mechanism, installs on horizontal traction mechanism, vertical traction mechanism includes traction rope, protection basket, the pulley is installed to protection basket and is around equipped in pulley to traction rope, locking piece, install on protection basket and pass the setting in locking piece to traction rope. The utility model, through horizontal traction mechanism drive vertical traction mechanism and protection basket remove along the horizontal direction, through vertical traction mechanism drive protection basket and lift, has improved construction flexibility, when protection basket accidental drop, through locking piece locks protection basket with traction rope, and then hinders protection basket and drops, solved the problem that construction flexibility is poorer and is difficult to hinder the accidental drop of hanging basket.
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Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, specifically to a safety protection device for bridge construction. Background Technology

[0002] In some bridge construction processes, protective devices need to be installed on the construction platform to allow workers to enter and carry out construction work. Existing protective devices include a protective base with a telescopic base fixedly connected to its side wall. Each side wall of the telescopic base has a movable telescopic cover fixedly connected to it. A drive motor is installed inside one of the movable telescopic covers, and a control shaft is installed at the power output end of the drive motor. A fixing component is fixedly connected to the top surface of the protective base, and a lifting motor is fixedly installed inside the fixing component. A fixing rod is installed at the power output end of the lifting motor, and the other end of the fixing rod is rotatably connected to the interior of a rotating shaft. The extension length is adjusted by the telescopic cover, allowing the device to extend beyond the bridge for easy lifting and lowering of the hoisting cable. This increases construction efficiency and allows the motor-assisted control of the hoisting cable to pull the construction basket for lifting operations, resulting in a more stable and safer lifting of the guardrail and improved safety performance.

[0003] The existing safety devices have the following problems: relying solely on a motor to drive the slings makes it difficult to prevent the suspended basket from falling unexpectedly, posing a safety hazard.

[0004] Based on the above situation, there is an urgent need for safety protection devices for bridge construction to solve the problem of difficulty in preventing the accidental fall of the suspended platform. Utility Model Content

[0005] The purpose of this utility model is to address the problem that existing protective devices rely solely on motor-driven slings to raise and lower the suspended platform, resulting in poor construction flexibility and difficulty in preventing accidental falls of the suspended platform, thus posing a safety hazard. This utility model solves the problems of poor construction flexibility and difficulty in preventing accidental falls of the suspended platform.

[0006] The technical solution of this utility model is as follows: Safety protection devices for bridge construction include: A horizontal traction mechanism is installed on the construction platform; A vertical traction mechanism is mounted on a horizontal traction mechanism, and the vertical traction mechanism includes a traction rope; A protective basket, wherein a pulley is installed on the protective basket and a traction rope is wound around the pulley; A locking element is installed on the protective basket, and a traction rope is threaded through the locking element.

[0007] Existing protective devices rely solely on motor-driven slings to raise and lower the suspended platform, resulting in poor construction flexibility and difficulty in preventing accidental falls, posing safety hazards. In this solution, the horizontal traction mechanism drives the vertical traction mechanism and the protective platform to move horizontally, while the vertical traction mechanism raises and lowers the platform, improving construction flexibility. When the protective platform accidentally falls, the locking mechanism secures it to the traction rope, preventing further falls and resolving the issues of poor construction flexibility and difficulty in preventing accidental falls.

[0008] Furthermore, this solution does not exclusively limit the specific structure of the horizontal traction mechanism. One feasible solution is that the horizontal traction mechanism includes a heavy-duty guide rail and a movable platform installed on the heavy-duty guide rail, and the vertical traction mechanism is installed on the movable platform. When this solution is adopted, the heavy-duty guide rail drives the movable platform and the vertical traction mechanism to move synchronously.

[0009] Furthermore, this solution does not exclusively limit the specific structure of the vertical traction mechanism. One feasible solution is that the vertical traction mechanism also includes a roller and a servo motor for driving the roller. One end of the traction rope is connected to the roller, and the other end of the traction rope is fixed to the movable platform. When this solution is adopted, the servo motor drives the roller to rotate forward or backward, thereby driving the protective basket to rise and fall.

[0010] Furthermore, this solution is not limited to the specific structure of the locking component. One feasible solution is as follows: the locking component includes a housing connected to the protective basket, and a swing rod is rotatably connected to the housing. The swing rod is connected to a lever, and a locking sleeve is installed on the lever. The locking sleeve is slidably connected to the housing. A locking hole is formed above the locking sleeve. A spring is connected to the locking sleeve, and the spring is used to push the locking sleeve into the locking hole. When this solution is adopted, during the normal operation of the vertical traction mechanism, the traction rope is subjected to tension and presses the swing rod, thereby compressing the spring. At this time, there is a gap between the locking sleeve and the locking hole, and the traction rope can pass through the locking sleeve normally. After the vertical traction mechanism fails, the traction rope loses tension, the spring rebounds and pushes the locking sleeve into the locking hole, clamping the traction rope through the locking sleeve, thereby preventing the protective basket from falling.

[0011] Furthermore, this solution is not limited to the specific structure of the locking sleeve. One feasible solution is that a metal ball is installed on the locking sleeve. When this solution is adopted, when the spring pushes the locking sleeve into the locking hole, the locking hole will squeeze the metal ball inward and press the traction rope through the metal ball, thereby locking the traction rope.

[0012] Furthermore, in order to reduce the friction between the swing rod and the traction rope, one feasible solution is to install a roller on the swing rod and have the traction rope in contact with the roller. When this solution is adopted, the friction between the swing rod and the traction rope is reduced under the action of the roller.

[0013] Compared with existing technologies, the beneficial effects of this utility model are: 1. The horizontal traction mechanism drives the vertical traction mechanism and the protective basket to move horizontally, and the vertical traction mechanism drives the protective basket to rise and fall, which improves the construction flexibility. When the protective basket falls accidentally, the locking device locks the protective basket to the traction rope, thereby preventing the protective basket from falling. This solves the problem of poor construction flexibility and difficulty in preventing the basket from falling accidentally. 2. The locking component includes a housing connected to the protective basket, with a swing rod rotatably connected to the housing. The swing rod is connected to a lever, and a locking sleeve is installed on the lever. The locking sleeve is slidably connected to the housing. A locking hole is formed above the locking sleeve. A spring is connected to the locking sleeve, and the spring is used to push the locking sleeve into the locking hole. During normal operation of the vertical traction mechanism, the traction rope is subjected to tension and presses the swing rod, thereby compressing the spring. At this time, there is a gap between the locking sleeve and the locking hole, and the traction rope can pass through the locking sleeve normally. After the vertical traction mechanism fails, the traction rope loses tension, the spring rebounds and pushes the locking sleeve into the locking hole, clamping the traction rope through the locking sleeve, thereby preventing the protective basket from falling. Attached Figure Description

[0014] Figure 1 This is a first-view structural diagram of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the overall second-view structure of an embodiment of the present utility model; Figure 3 for Figure 1 Enlarged view of point A in the image; Figure 4 for Figure 2 Enlarged view of point B in the image; Figure 5 This is a schematic diagram of a half-section of the locking component according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the locking sleeve structure according to an embodiment of the present invention.

[0015] Figure label: 1. Horizontal traction mechanism; 2. Vertical traction mechanism; 3. Protective basket; 4. Locking components; 11. Heavy-duty guide rail; 12. Movable platform; 21. Traction rope; 22. Drum; 23. Servo motor; 24. Reducer; 31. Pulley; 41. Housing; 42. Swing rod; 43. Toggle lever; 44. Locking sleeve; 45. Locking hole; 46. Spring; 421. Roller; 441. Metal ball. Detailed Implementation

[0016] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variations thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0017] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0018] Example: Please refer to Figure 1 , Figure 2 and Figure 3 Safety protection devices for bridge construction include: Horizontal traction mechanism 1 is installed on the construction platform; A vertical traction mechanism 2 is installed on the horizontal traction mechanism 1, and the vertical traction mechanism 2 includes a traction rope 21; The protective basket 3 is equipped with a pulley 31 and a traction rope 21 is wound around the pulley 31. Locking component 4 is installed on the protective basket 3 and the traction rope 21 is threaded through the locking component 4.

[0019] Existing safety devices rely solely on motor-driven slings to raise and lower the suspended platform, resulting in poor construction flexibility and difficulty in preventing accidental falls, posing a safety hazard. In this solution, a horizontal traction mechanism 1 drives a vertical traction mechanism 2 and the safety platform 3 to move horizontally, while the vertical traction mechanism 2 raises and lowers the safety platform 3, improving construction flexibility. In the event of an accidental fall, the safety platform 3 is locked to the traction rope 21 by a locking device 4, thus preventing the platform from falling. This solves the problems of poor construction flexibility and difficulty in preventing accidental falls.

[0020] Reference Figure 2This solution does not limit the specific structure of the horizontal traction mechanism 1. One feasible solution is that the horizontal traction mechanism 1 includes a heavy-duty guide rail 11 and a movable platform 12 installed on the heavy-duty guide rail 11. The vertical traction mechanism 2 is installed on the movable platform 12. When this solution is adopted, the movable platform 12 and the vertical traction mechanism 2 are moved synchronously by the heavy-duty guide rail 11.

[0021] Reference Figure 2 and Figure 4 This solution does not limit the specific structure of the vertical traction mechanism 2. One feasible solution is that the vertical traction mechanism 2 also includes a roller 22 and a servo motor 23 for driving the roller 22. One end of the traction rope 21 is connected to the roller 22, and the other end of the traction rope 21 is fixed to the movable platform 12. Specifically, in this embodiment, a reducer 24 is installed between the servo motor 23 and the roller 22. When this solution is adopted, the servo motor 23 drives the roller to rotate forward or backward, thereby driving the protective basket 3 to rise and fall.

[0022] Reference Figure 5 This solution does not exclusively limit the specific structure of the locking component 4. One feasible solution is as follows: The locking component 4 includes a housing 41 connected to the protective basket 3, and a swing rod 42 is rotatably connected to the housing 41. The swing rod 42 is connected to a lever 43, and a locking sleeve 44 is installed on the lever 43. The locking sleeve 44 is slidably connected to the housing 41. A locking hole 45 is formed above the locking sleeve 44. A spring 46 is connected to the locking sleeve 44, and the spring 46 is used to push the locking sleeve 44 into the locking hole 45. When this solution is adopted, during the normal operation of the vertical traction mechanism 2, the traction rope 21 is subjected to tension and presses against the swing rod 42, thereby compressing the spring 46. At this time, there is a gap between the locking sleeve 44 and the locking hole 45, and the traction rope 21 can pass through the locking sleeve normally. After the vertical traction mechanism 2 fails, the traction rope 21 loses tension, the spring 46 rebounds and pushes the locking sleeve 44 into the locking hole 45, clamping the traction rope 21 through the locking sleeve 44, thereby preventing the protective basket 3 from falling.

[0023] Reference Figure 6 This solution does not limit the specific structure of the locking sleeve 44. One feasible solution is that a metal ball 441 is installed on the locking sleeve 44. When this solution is adopted, when the spring 46 pushes the locking sleeve 44 into the locking hole 45, the locking hole 45 will squeeze the metal ball 441 inward and press the traction rope 21 through the metal ball 441, thereby clamping the traction rope 21.

[0024] Reference Figure 3 and Figure 5In order to reduce the friction between the swing rod 42 and the traction rope 21, one feasible solution is to install a roller 421 on the swing rod 42 and have the traction rope 21 in contact with the roller 421. When this solution is adopted, the friction between the swing rod 42 and the traction rope 21 is reduced under the action of the roller 421.

[0025] To address the issues of poor construction flexibility and difficulty in preventing accidental falls of the suspended platform, this solution utilizes a horizontal traction mechanism 1 to move the vertical traction mechanism 2 and the protective basket 3 horizontally. The vertical traction mechanism 2 then raises and lowers the protective basket 3, improving construction flexibility. When the protective basket 3 falls accidentally, the locking device 4 secures it to the traction rope 21, thus preventing the basket from falling. This solution effectively addresses the problems of poor construction flexibility and difficulty in preventing accidental falls of the suspended platform.

[0026] To facilitate clamping the traction rope 21, in this design, the locking component 4 includes a housing 41 connected to the protective basket 3, and a swing rod 42 is rotatably connected to the housing 41. The swing rod 42 is connected to a lever 43, and a locking sleeve 44 is installed on the lever 43. The locking sleeve 44 is slidably connected to the housing 41, and a locking hole 45 is formed above the locking sleeve 44. The locking sleeve 44 is connected to a spring 46, and the spring 46 is used to push the locking sleeve 44 into the locking hole 45. During normal operation of the vertical traction mechanism 2, the traction rope 21 is subjected to tension and presses the swing rod 42, thereby compressing the spring 46. At this time, there is a gap between the locking sleeve 44 and the locking hole 45, and the traction rope 21 can pass through the locking sleeve 44 normally. After the vertical traction mechanism 2 fails, the traction rope 21 loses tension, the spring 46 rebounds and pushes the locking sleeve 44 into the locking hole 45, clamping the traction rope 21 through the locking sleeve 44, thereby preventing the protective basket 3 from falling.

[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A safety protection device for bridge construction, characterized in that, include: Horizontal traction mechanism (1), installed on the construction platform; A vertical traction mechanism (2) is installed on a horizontal traction mechanism (1), and the vertical traction mechanism (2) includes a traction rope (21). A protective basket (3) is provided with a pulley (31) and a traction rope (21) is wound around the pulley (31). The locking element (4) is installed on the protective basket (3) and the traction rope (21) is threaded through the locking element (4).

2. The safety protection device for bridge construction according to claim 1, characterized in that, The horizontal traction mechanism (1) includes a heavy-duty guide rail (11) and a movable platform (12) mounted on the heavy-duty guide rail (11), and the vertical traction mechanism (2) is mounted on the movable platform (12).

3. The safety protection device for bridge construction according to claim 2, characterized in that, The vertical traction mechanism (2) also includes a roller (22) and a servo motor (23) for driving the roller (22). One end of the traction rope (21) is connected to the roller (22), and the other end of the traction rope (21) is fixed to the movable platform (12).

4. The safety protection device for bridge construction according to claim 1, characterized in that, The locking component (4) includes a housing (41) connected to the protective basket (3) and a swing rod (42) rotatably connected to the housing (41). The swing rod (42) is connected to a lever (43) and a locking sleeve (44) is installed on the lever (43). The locking sleeve (44) is slidably connected to the housing (41). A locking hole (45) is formed above the locking sleeve (44). A spring (46) is connected to the locking sleeve (44) and the spring (46) is used to push the locking sleeve (44) into the locking hole (45).

5. The safety protection device for bridge construction according to claim 4, characterized in that, A metal ball (441) is installed on the locking sleeve (44).

6. The safety protection device for bridge construction according to claim 4, characterized in that, The swing arm (42) is equipped with a roller (421) and the traction rope (21) is in contact with the roller (421).